SNOMED CT® Release Format 1 (RF1) Guide - ihtsdo

74 | SNOMED CT Release Format 1 (RF1) Guide July 2012
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This occurs if a decision is made that some Concepts in the International Release are specific to a
Realm or domain or interest for which another organization has been allocated responsibility:
•
For example, this applies to UK specific drugs and UK specific administrative Concepts which are
maintained by the UK NHS.
• From an organization responsible for an Extension to the International Release:
• This occurs if an organization recognizes that some of its Extension content belongs in the International
Release as it has general applicability;
• It also occurs if an organization hands over responsibility for its entire Extension to the IHTSDO.
• From one organization responsible for an Extension to another organization :
• This occurs if one organization recognizes that some of its Extension content belongs in a domain
managed by another organization ;
• It also occurs if an organization hands over responsibility for its entire Extension to another organization
.
There are three types of transfer of responsibility:
• Transfer of an entire Extension (i.e. all components ever issued with an SCTID in a given Namespace.
from one organization to another organization ):
• This is a straight forward process. All that happens is that another organization assumes responsibility
for the original Namespace-identifier. There is no need for detailed tracking of individual components.
• Transfer of one or more components from an Extension to the International Release or to a
"parent"Extension:
• As a result of revision to guidance issued by the IHTSDO in 2011, these transfers can be made without
changing the Identifier of the component provided that the RF2 format moduleId field is used to denote
that the component is now being issued as part of a different module.
• Transfer of one or more components between other Extensions or from the International Release to any
Extension:
• In this case, the Namespace is not transferred and thus, to fulfill the roles of the Namespace-Identifier,
the component must be assigned new SCTIDs in the Namespace of the newly responsible organization
:
• The previous instances of these components are withdrawn from current use with the Status value
Moved Elsewhere;
• Appropriate Relationships point to replacement components in the new Namespace.
The transfer of responsibility depends on the release schedules of the organizations involved. Often the
original source organization will be aware of an intended move before the target organization has accepted
responsibility and released the component. To facilitate this, an interim Status value Pending Move is applied
to components that are being moved to another Namespace but are intended for active use until their
replacements are found in the target Namespace.
To provide continuity for a Concept if responsibility is transferred, the Concept Status and history are
coordinated as follows:
© 2002-2012 International Health Terminology Standards Development Organisation CVR #: 30363434